Samsung DV45H Series Service Manual
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Samsung DV45H Series Service Manual

Clothes dryer
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SERVICE
CLOTHES DRYER
DV45H*
Refer to the service manual in the GSPN (see the rear cover) for the more information.
CLOTHES DRYER
Basic Model : DV435ETGJWR/A1
(GRACE-S DRYER PROJECT)
Model Name : DV45H*
DV42H*
(DV6000/5000HA DRYER PROJECT)
Manual
1. Safety Instructions
2. Features and Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB diagram
6. Wiring diagram
CONTENTS

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  • Page 1 CLOTHES DRYER Basic Model : DV435ETGJWR/A1 (GRACE-S DRYER PROJECT) Model Name : DV45H* DV42H* (DV6000/5000HA DRYER PROJECT) SERVICE Manual CLOTHES DRYER CONTENTS 1. Safety Instructions 2. Features and Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB diagram 6. Wiring diagram DV45H* Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    CONTENTS 1. Safety Instructions ..............1 1-1.

  • Page 3: Safety Instructions

    1. SAfETY INSTRuCTIONS 1-1. CAuTION fOR SAfETY DuRING SERVICING 1. Do not allow the customer to repair the product. 4 The person may be injured or the product life may be shortened. 2. Execute A/S after unplugging the power supply unit. 4 Be careful of the electric shocks. 3. Do not plug several plugs in the same outlet. 4 It may cause a fire due to overheat. 4. Check for damage, pinching or burning of the power plug the outlet. 4 Replace it promptly if it has a problem.(It may cause the electric shocks or fire) 5. Do not clean the main body with water. 4 It may cause electric shocks and fire and shorten the product life) 6. The wiring harness shall be free from moisture and tightened during serving. 4 It shall not be deviated by certain impact. 7. Remove any dust or dirt on the housing section,wiring section,connection section during servicing. 4 Protect from possible cause of fire such as the tracking,shortage etc. 8. Check for any marks of moisture on the electrical parts, harness section etc. 4 Replace the parts or remove the moisture. 9. Check the assembly status of the parts after servicing.

  • Page 4: Important Safety Information

    1-2. IMPORTANT SAfETY INfORMATION To avoid risk of fire, electric shock, serious injury, or death when using your dryer, follow these basic precautions: 1. Read all instructions before using the dryer. 2. Install dryer according to Installation Instructions. Refer to the Grounding Instructions in the Installation Instructions for proper grounding of the dryer. 3. Do not dry articles that have been cleaned in, washed in, soaked in, or spotted with gasoline, drycleaning solvents, or other flammable or explosive substances. Vapors could ignite or explode. 4. Do not use the dryer to dry clothes which have traces of any flammable substance, such as vegetable oil, cooking oil, machine oil, flammable chemicals, thinner, etc., or anything containing wax or chemicals, such as mops and cleaning cloths. Flammable substances may cause the fabric to catch fire by itself. 5. Do not store or use gasoline or other flammable vapors and liquids near this or any other appliance. 6. Do not allow children to play on or in dryer. Close supervision of children is necessary when the dryer is used near children, a safety rule for all appliances. 7. Before the dryer is removed for service or is discarded, remove doors to drying compartment. 8. Do not reach into the dryer if cylinder is rotating. 9. Do not install or store the dryer where it will be exposed to water and/or weather. 10. Do not tamper with dryer controls. 11. Do not repair or replace any part of the dryer or attempt any service, unless specifically recommended in user- maintenance instructions or in published user-repair instructions that you understand and have skills to carry out, if you are a consumer. 12. To reduce risk of electric shock or fire, do not use extension cords or adapters to connect the dryer to electrical power source. 13. Use the dryer only for its intended purpose, drying clothes. 14. Always disconnect the dryer from electrical supply before attempting any service. Disconnect the power cord by holding the plug, not the cord. 15. Do not use heat to dry articles containing foam rubber or similarly textured rubberlike materials.
  • Page 5 22. Never operate the dryer with the guards and/or the panels removed. 23. Do not operate the dryer with missing or broken parts. 24. Do not bypass safety devices. 25. Keep area around the exhaust opening and adjacent surrounding areas free from accumulation of lint, dust, and dirt. 26. Interior of dryer and exhaust duct should be cleaned periodically by qualified service personnel. 27. The dryer will not operate with loading door open. DO NOT bypass the door safety switch by permitting the dryer to operate with door open. The dryer will stop tumbling when the door is opened. Do not use the dryer if it does not stop tumbling when door is opened or starts tumbling without pressing or turning the START mechanism. Stop using the dryer and contact a qualified service technician. 28. Remove laundry immediately after the dryer stops. 29. ALWAYS follow the fabric care instructions supplied by the garment manufacturer. ■ Electrical service information Electrical Dryers 240 VAC, 60 Hz, 30 Amps, 3-wire or 4-wire installations Gas Dryers 120 VAC, 60 Hz, 15 Amps, 3-wire installations WARNING To reduce the risk of fire, electric shock, serious injury or death, all wiring and grounding must conform with the latest edition of the National Electric Code, or the Canadian Electrical Code, and such local regulations as might apply. It is the customers responsibility to have the wiring and fuses checked by a qualified electrician to make sure your home has adequate electrical power to operate the dryer. WARNING To avoid risk of personal injury or death due to electrical shock: - Observe all local codes and ordinances. - Disconnect the electrical power to the unit before servicing. - Ground the appliance properly. - Check with a qualified electrician if you are not sure this appliance is properly grounded. - DO NOT ground to a gas line. - DO NOT ground to a cold water pipe if pipe is interrupted by plastic, nonmetallic gaskets, or other insulating (nonconducting) materials. - DO NOT modify the plug on the power cord. If plug does not fit electrical outlet, have proper outlet installed by qualified electrician.
  • Page 6 ■ Gas dryer power supply This equipment MUST be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electrical current. This unit is equipped with a cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly installed and grounded. Consult a qualified electrician or servicer if grounding instructions are not completely understood, or if doubt exists as to whether the equipment is properly grounded. Do not use an extension cord. If the product power cord is too short, have a qualified electrician install a three slot receptacle. This unit should be plugged into a separate 60 hertz circuit with the electrical rating as shown on the serial plate. ■ Proper grounding and polarization for 120 volts wall outlets For the safety of our customers and the service technician ALL gas Ground dryers have a three-prong power cord and MUST be connected to a Neutral properly polarized and grounded wall outlet. This information was written for those who do not understand grounding and polarization of a wall Neutral side outlet. A 120 VAC wall outlet must always be wired as shown right. Polarization - This means that the larger slot must be neutral and the 115±15 small slot must be hot (live). V.A.C. V.A.C. Mispolarized - The outlet is miswired so that the larger slot is hot (live) and the smaller slot is neutral. 115±12 Grounded - This means the round hole connection is connected to V.A.C.

  • Page 7: Features And Specifications

    2. fEATuRES AND SPECIfICATIONS 2-1. fEATuRES features Description Ultra drying capabilitlites are at your fingertips! Now you can dry extra-large loads. Extra Large Capacity Our ultralarge 7.5 cu.ft. capacity dryer circulates more air through your clothes getting them dry faster, for a wrinkle-free result. Our cycles are designed with you in mind. All our dryers are designed to dry your Time Saving clothes in less time... just 42 minutes! Giving you time for more important things in life. Samsung dryers are super energy efficient, that you can dry up to 3.31 pounds of Energy Saving laundry with 1kWh. Also, both the large capacity and Fuzzy Logic Control save energy by automatically drying your clothes the most efficient way. Our dryers will fit just about anywhere and without a door conflict. The direction of our Easy Reversible Door easy reversible door can be changed with just four screws. An optional 15” pedestal is available to raise the washer for easier loading and Pedestal with Storage unloading. It also offers a built-in storage drawer that can hold a 100 oz. bottle of Drawers detergent Samsung’s Washer and Dryer can be stacked to maximize usable space. Stacking The Dryer legs need to be removed to stack the Washer and Dryer. An optional stacking kit is available for purchase from your Samsung retailer. Simply turn the Jog Dial to select one of the 13 automatic drying cycles, including Various Drying Cycles &...

  • Page 8: Specifications

    2-2. SPECIfICATIONS Model name DV45H*, DV42H* Type Front loading dryer A: High 38.7" (98.cm) B: Width 27" (68.6cm) Dimension C: Depth with door open 90° 53" (134.5cm) D: Depth 32.4" (82.3cm) Weight 125.6lb (57kg) 5300 W (Elec.) Heater rating 22000 BTU/hr (Gas) Water Pressure 20-116 psi (137-800kPa) 6 _ Features and Specifications...

  • Page 9: Comparing Specifications With Existing Models

    2-3. COMPARING SPECIfICATIONS WITH ExISTING MODELS Model name DV45H6300 DV42H5200 DV435 Image Capacity 7.5 cu.ft 7.5 cu.ft 7.5 cu.ft Dryer Type Electric/Gas Electric/Gas Electric/Gas Matching Washer WF45H6300 WF42H5200 WF435 Number of Drying Cycle Normal Heavy Duty Bedding Sensor Dry Sanitize Delicates Wool Cycle...

  • Page 10: Options Specifications

    2-4. OPTIONS SPECIfICATIONS Item Code Remarks MANUAL-BOOK DC68-03380A (DV45H6300, DV42H5600) (DV45H6300, DV42H5600) MANUAL-BOOK DC68-03381A (DV42H5400, 5200, 5000) (DV42H5400, 5200, 5000) DIE-RACK DRY DC61-02705A ASSY CONNECTOR - Outer Diameter : 24mm DC97-15103A - Pitch : 2.2mm default HOSE-WATER - Outer Diameter : 27.5mm DC62-00075B - Pitch : 2.2mm ASSY HOSE CONNECTOR - Outer Diameter : 24mm DC97-15249A - Pitch : 2.2mm SEAL-WATER DC62-40178A 8 _ Features and Specifications...

  • Page 11: Disassembly And Reassembly

    3. DISASSEMBLY AND REASSEMBLY 3-1. TOOLS fOR DISASSEMBLY AND REASSEMBLY Tool Type Remarks 14 mm Fan (1) Socket set with 6” extention 17 mm Roller Shaft (4) Wrench 8 mm Tool to fix the Roller Shaft on removing the nuts. Tool to protect the idle and abrasion of the bolt Vice pliers for the box driver. Other (Driver, Diagonal Cutter, General tools for the after service. Long Nose Pliers) Removal and Reassembly _ 9...

  • Page 12: Standard Disassembly Drawings

    3-2. STANDARD DISASSEMBLY DRAWINGS To avoid risk of electrical shock, personal injury or death, disconnect the power to the Clothes Dryer. ► This is a standard disassembly diagram and may differ from the actual product. Use this material as a reference when disassembling and reassembling the product. Part figure Description 1. Disconnect the power supply and to the unit 2. Remove 2 screws from the Top- Cover Top Cover Removal 3. Slide Top Cover towards the rear and lift from the unit. Scratch and impact to the top cover is prohibited. 10 _ Removal and Reassembly...
  • Page 13 Part figure Description 1. Disconnect the power supply to the unit. 2. Remove the Top-Cover. 3. Remove 2 screws from the Guide-Panel. 4. Separate 6 Hook from Guide Panel. 5. Remove Console. Console Removal 6. Remove Each Housing. 8. Remove screws from the Assy PCB Sub. Be careful of external scratch on the console. Removal and Reassembly _ 11...
  • Page 14 Part figure Description 1. Disconnect the power supply and to the unit 2. Remove the Top Cover 3. Remove 3 screws from the frame+plate 4. Remove the Wire holder Main PCB Removal 5. Remove the Housings Shaking the heater terminal side ways to pull it out is prohibited. 12 _ Removal and Reassembly...
  • Page 15 Part figure Description 1. Door Opening 2. Remove 2 screws from the Frame panel 3. Separate the temporary fixation part of the Assembly Door. 4. Remove 14 screws from the Holder Glass 5. Remove the Door-Cover Door Removal 6. Remove 4crews from the Support-Hinge 7. Remove the Support-Hinge, Hinge 8. Remove the Door Seal A. Be careful not to scratch the Door-Cover. B. Be careful of the damage to the Door Glass. C. Check the Door Seal condition after the assembly. Removal and Reassembly _ 13...
  • Page 16 Part figure Description 1. Disconnect the Power Supply to the unit 2. Remove the Top Cover, and the Console 3. Remove the filter 4. Remove 2 screws from the Frame Front frame Panel 5. Remove 4 screws from the Plate (u) Removal 6. Remove the Door Switch Housing When reassemble Door Switch to Frame Panel, be careful for insert direction. 7. Lift the Front Panel off the three tabs across the bottom and remove 1. Disconnect the Power Supply to the unit 2. Remove the Top Cover, the Console, and the Front Plate Removal Panel 3. Remove 4 screws from the Plate (u) 14 _ Removal and Reassembly...
  • Page 17 Part figure Description 1. Disconnect the power supply to the unit 2. Remove the Top Cover, the Console, the front panel and the Plate(u) 3. Separate the wire in the wire Holder (2EA) 4. Disconnect Interior Light wiring Harness 5. Remove the four bulkhead retaining 5 screws. 6. Disconnect the Moisture Sensor wiring Harness front Bulkhead Removal (Continued) 7. Lift Bulkhead from the Cabinet then remove it. 8. Remove 2 screws from the Duct Outlet 9. Remove the Duct Outlet Removal and Reassembly _ 15...
  • Page 18 Part figure Description 10. Remove Clip and Roller. 11. Remove 2 screws from the Case Filter (B). 12. Remove 1 screw from the Case Filter (F). front Bulkhead Removal 13. Remove the Case Filter (B/F). Make sure the Filter does not get damaged by the Roller. 14. Disconnect 2 Housing Sensor-Plate. 15. Remove 2 Sensor-Plate. 16 _ Removal and Reassembly...
  • Page 19 Part figure Description 1. Disconnect the Power Ssupply to the unit 2. Remove the Top Cover, the Console, the Front Panel, the Plate(u), and the Front Bulkhead 3. Remove Belt Drum Removal 4. Remove the Drum When reassemble the belt , make it located between 2 red arrows. 1. Disconnect the power supply to the unit 2. Remove the Top Cover, the Console, and the Front Panel 3. Remove 2 Housing Sensor Sensor (Thermistor, Thermostat) Removal 4. Remove the Sensor Do not apply excessive force to the terminal. Removal and Reassembly _ 17...
  • Page 20 Part figure Description 1. Disconnect the power supply to the unit 2. Remove the Top Cover, the Console, and the Front Panel 3. Removal 6 Housing Heater-Terminals 4. Remove 1 screw from the Heater Heater Removal 5. Separate the Heater from the Drum-back 6. Remove 4 screws from the Thermostats Do not apply excessive force to the terminal. 18 _ Removal and Reassembly...
  • Page 21 Part figure Description 1. Disconnect the power supply to the unit 2. Remove the Top Cover, the Console, the Front Panel, the Plate(u), the Front Bulkhead and the Drum 3. Remove 2 screws from the Duct Connector 4. Separate the Duct Connector Assy Motor Removal 5. Remove 1 Housing Motor. (Continued) 6. Remove 2 Housing Belt Cut Off Switch. 7. Remove 3 screws from the Motor-Bracket. Removal and Reassembly _ 19...
  • Page 22 Part figure Description 8. Separate the Motor Assy at the Bottom Plate 9. Remove 1 Nut Fan 10. Remove the Fan Assy Motor Removal (Continued) 11. Remove 3 screws from the Cover-Duct Fan 12. Remove the 2 Spring Plate 13. Remove the 1 screw Belt cut Off Switch 20 _ Removal and Reassembly...
  • Page 23 Part figure Description 14. Remove the Holder Shaft Assy Motor Removal 15. Remove the Roller-Idler Removal and Reassembly _ 21...
  • Page 24 Part figure Description 1. Disconnect the Power Supply to the unit. 2. Remove the Top Cover, the Console, the Front panel, the Plate(u), the Front Bulkhead and the Drum. 3. Remove 8 screws from the Drum-Back. 4. Remove 2 screws from the Valve-Water. 5. Separate the wire in the Wire Holder. Drum Back Removal (Continued) 6. Separate the Drum Back from the Frame. 7. Remove the terminals from the Valve-Water. 22 _ Removal and Reassembly...
  • Page 25 Part figure Description 8. Remove 4 screws from the Air Duct. Be careful of the frame edge. Drum Back Removal 9. Remove the 2 screws from the Guide Nozzle. 10. Remove the 1 screw fron the Assy Thermistor. 1. Disconnect the power supply to the unit. 2. Remove 1 screw from the Back-Cover. Duct Exhaust Removal 3. Remove 1 screw from the Duct-Exhaust. In case the screws for fixing a power code are dropped into the dryer, after removing Duct Exhaust, you can put it out through the hole. Removal and Reassembly _ 23...
  • Page 26 Part figure Description 1. Unplug the power cord. 2. Remove 2 door hinge screws. 3. Lift the door and remove it. 4. Remove 2 screws from the Frame Front. 5. Remove the 2 screws from the opposite side of the Door Hinge. DOOR REVERSAL (Continued) 6. Remove 2 screws from the Holder Lever. 7. Reassemble 2 screws on Inside Holes. 8. Remove 1 black screw from the Door Hinge. The black screw is for pre-fixing the Door to the Frame Front. 24 _ Removal and Reassembly...
  • Page 27 Part figure Description 9. Reassemble the black screw in the other hole. 10. Place the door on the other side and reattach it to the dryer. DOOR REVERSAL 11. Reattach the Holder Lever. 12. Reattach the screws in the Remaining Holes. Reassembly procedures are in the reverse order of dissasembly procedures. Removal and Reassembly _ 25...

  • Page 28: Troubleshooting

    4. TROuBLESHOOTING 4-1. ERROR ITEMS AND DIAGNOSTIC CODES An occurrence of an Error will make a sound of error melody for 5sec and continuously show one of the Error Displays from the following errors. Error Display Trigger Action Taken Check for: - Clogged lint screen. The Thermistor resistance is very low or high. Restricted vent system. - Check Thermistor resistance. Check for: - Close the door, and run the dryer. Running the dryer with door open. - Loose or open wire terminals in Door Sense circuit. Check for: Invalid state of key. - Display PCB key circuit short or not. Check for: Invalid power source Frequency. - Not using regular power source frequency. - Invalid power frequency sense circuit.

  • Page 29: Test Mode

    4-2. TEST MODE  Data Display Mode How to Enter: DV455* • I n normal mode, press Drylevel ⇀ Time ⇀ Temp ⇀ Time in less than 2 seconds to enter the display mode. • To change the mode, use the cycle selector dial. Definition of Data Display Mode: • D isplay Mode 1 : Main micom version • D isplay Mode 2 : display micom version • D isplay Mode 3 : touch module version • D isplay Mode 4 : option value • D isplay Mode 5 : Temperature data • D isplay Mode 6 : Average temperature data for 1 minute • D isplay Mode 7 : Temperature data for detecting vent clog up • D isplay Mode 8 : Average touch sensor data for 1 minute...

  • Page 30: Trouble Diagnosis

    4-3. TROuBLE DIAGNOSIS As the micom dry machine is configured for the complicate structure, there might be a service call. The below information is prepared for exact trouble diagnosis and suitable repair guide. ■ Caution for the repair and replacement Please follow below instruction for the trouble diagnosis and parts replacement. 1. As some electronic components can be damaged by static electricity from the resin part of dryer or the human body, remove the potential difference of the human body and the dryer by contacting the power plug before you start working at PCB. Power supply plug 2. Since AC220~240V is applied to the triac T1 and T2 on P.C.B, the electric shock may occur by touching. Be careful the strong and weak electricity are mixed each other. 3. As the P.C.B assembly is designed for no trouble, do not replace the P.C.B assembly by the wrong diagnosis and follow the procedure of the trouble diagnosis when the micom is not operated normally. Problem What to do • All wires are hooked up to their corresponding terminals. •...
  • Page 31 Problem What to do When the dryer is operated on a heat setting, the igniter should be energized and burner shall Will Not Dry Gas Model Poor fire within 45 seconds at 120 VAC. The failure of a component in this system will usually be Gas Ignition indicated by one of three symptoms (No.8, No.9, No.10) If the igniter does not heat up, remove power and using an ohmmeter, check the following: • Open flame sensor • Open igniter The igniter does not glow • Shorted booster coil • Open wiring • Bad motor switch ( Neutral supply) • No power from control ( L1 supply) If the igniter heats up but the main burner flame is not ignited, remove power and using an ohmmeter, check the following: • Open secondary coil Igniter glows - No gas ignition • Open holding coil • Open wire harness • Stuck flame sensor (Stuck closed) If a normal ignition takes place and after a short while the flame goes out, check for the following: • Radiant sensor contacts opening prematurely. The gas is ignited but the • Weak gas valve coil may open when stressed by higher Temps. flame goes out • Weak Hi-Limit • Poor venting...

  • Page 32: Symptoms, Diagnosis And Actions

    4-4. SYMPTOMS, DIAGNOSIS AND ACTIONS ■ The power does not work. Set the input AC voltage. Neutral (Check AC 120/240V) Is the input AC Earth voltage normal? 120V 240V Directly connect the terminal block. Neutral (Connect in the order of Live 2, Neutral, Is the terminal block Live 1) Earth connection normal? Connect the housing. (Check 120V for AC power) Is the housing connection normal? Check the flat wire. Is the flat wire among the main sub PCBs in good condition? Replace the sub PCB. (Check DC power, signal and key) Is the sub PCB normal? The problem is in the main PCB assembly. Please replace it.
  • Page 33 ■ The drum does not work. Press the Start button. (Start/Pause is repeated) Is the Start button Close the door. (Check whether the door S/W is pressed) Is the door closed properly? Check the wire connection of the power supply. Is the connection to the door S/W (Check the contact point and connected normal? condition of the door S/W) Check if the connector is normal. (Normal: Check whether it is 0Ω when the Is the thermostat power is unplugged) normal? 1. Check the belt cut S/W and connected condition. Is the connected (Normal: Check whether it is 0Ω when the condition of the belt power is unplugged) normal? Belt cut-off S/W 2. Check the connected condition of the motor, idler and drum belt. Check whether the motor protector is operating. Is the motor normal? (Check for overload, drum constraint, centrifugal S/W etc.) The problem is in the PCB...
  • Page 34 ■ The clothes are not dried. Install the vent so that it is not blocked to the outside. (Check the exhaust hole) Is the vent properly installed? Clean the filter. (Check if there are any alien particles in Did you clean the the filter) filter before drying? Connect the terminal block properly. Neutral (Check the connection of Live 2, Neutral, Is the terminal block Live 1) connection normal? Earth Connect the touch sensor. (Check the PCB and touch sensor) Is the touch sensor u For further instructions, please refer to normal? 38 page “ Sensor Bar &Temperature Sensor check” Replace the thermistor (Check the connection between the Is the Tamp. Sensor PCB and termistor and check for any normal? disconnection) u For further instructions, please refer to 38 page “...
  • Page 35 ■ The lamp does not work. Replace the door S/W. (Door operation of door S/W) Is the door S/W structurally on/off? Connect the power properly. (Check the connection between terminal Is the power block and door S/W) connection normal? Replace the lamp. (Check for disconnection of lamp and socket) Is the lamp normal? Check if the input voltage is properly coming in. Neutral Earth Troubleshooting _ 33...
  • Page 36 ■ There is an abnormal noise in the dryer. Reassemble the door seal. Do you hear a (Check the assembled condition of the door whistling sound from seal and check the door lever) the door seal? 1. Check the roller. (Check the roller that supports the drum Does the noise come and rotates) from the drum? 2. Check the drum. (Check if the drum welding is cracked) 1. Check the rotating part of the idler. (Idler bracket bending, bracket screw) Is there an abnormal noise in the motor part? 2. Remove any alien particle on the wings of the fan. (Noise can be generated from the unbalance of the fan due to alien particle on the fan. Check the tightened condition of the nut.) 1. Noise from drum back and heater duct movement. Is there an abnormal (Change the contacting part and check noise from the heater...

  • Page 37: Component Testing Procedures

    4-5. COMPONENT TESTING PROCEDuRES WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power. ■ Component electrical testing (with ohmmeter) • Thermistor resistance 10K Ω at 25°C 77°F (2P-Blue & Red wire) • Thermostat 1 resistance < 1Ω (White & Yellow wire) Thermistor Thermostat 1 85 °C, 25A thermal cut-off • Thermostat 3 resistance < 1Ω (Red & Black wire) - If resistance is infinity, replace thermostat 3. • Thermostat 2 resistance < 1Ω (Blue & Black wire) - If resistance is infinity, replace thermostat 2. • [DUAL] Heater resistance 13 Ω (PIN 2-3) Heater resistance 34 Ω (PIN 1-2) - If resistance is infinity, replace Heater. • [SINGLE] Heater resistance 10 Ω (PIN 1-3) - If resistance is infinity, replace Heater. • Measure resistance of the following terminal Door S/W 1. Door switch knob: open Terminal : “COM” - “NC” (1-3) < 1Ω...
  • Page 38 ■ Centrifugal Switch (Motor) 2.88Ω between Pin# 3 and 4 3.5Ω between Pin# 4 and 5 ■ Thermistor 238.23 Ω @ 25°C 77 ■ GAS MODEL Radiant Sensor(10RS) • Resistance value < 1 Ω • If resistance is infinite, replace Radiant sensor 120V Igniter(101D) • Resistance value 40~400 Ω • If resistance is infinite, replace Igniter 120V 4.5A Gas Valve(25M01A) • Valve 1-2 : Resistance value 1.2K Ω • Valve 1-3 : Resistance value 0.5K Ω • Valve 4-5 : Resistance value 1.2K Ω • If resistance is infinity, replace Valve 120V 60 Hz, 120A Thermostat (60T21 Hi-Limit)230f-50f • Resistance value < 1 Ω...
  • Page 39 ■ Sensor Bars & temperature sensor check Sensor Bars Disconnect harness and test Pink wire Pin 4 to Orange wire Pin 5. • Approx ∞ Ω without laundry • Approx 190Ω ± 10% with wet clothes Cycling Thermistor1 Disconnect harness and test Blue wire Pin 3 to Red wire Pin 6. • Approx 10 KΩ at 25 °C/77 °F Cycling Thermistor2 Disconnect harness and test Yellow wire Pin 2 to White wire Pin 7. • Approx 238.231 KΩ at 25 °C/77 °F Troubleshooting _ 37...

  • Page 40: Pcb Diagram

    5. PCB DIAGRAM 5-1. MAIN PCB This Document can not be used without Samsung’s authorization. Location Part No. function Location Part No. function AC CONNECTION SET GROUND CONNECTION The connector connecting the Dryer Set and the ground of the Supplies AC power to the PBA CONNECTOR CONNECTOR SUB PBA COMMUNICATION MOTOR OPERATION RELAY The relay that turns the Main Motor and off. The connector that controls communications with the Sub PBA corresponding to the Display. CONNECTOR HEATER2 OPERATION RELAY The relay that turns the Heater2 on and off. MICOM FLASH CONNECTOR The connector that writes software onto the MICOM. HEATER1 OPERATION RELAY The relay that turns the Heater1 on and off. Connects the temperature sensor in order to detect the SENSOR CONNECTION CONNECTOR temperature of the heater.

  • Page 41: Detailed Descriptions Of Contact Terminals (Main Pcb)

    5-2. DETAILED DESCRIPTIONS Of CONTACT TERMINALS (MAIN PCB) This Document can not be used without Samsung’s authorization. ► CN3 1. 5V ► CN5 ► CN2 2. SO 1. STEAM VALVE1 1. Communications Port(Rx) 3. SI 2. Empty Pin 2. Communications Port(Tx) 4. RESET ► CN1 3. LAMP 3. SUB RESET 5. CLOCK 1. AC Power Port...

  • Page 42: Sub Pcb

    5-3. SuB PCB This Document can not be used without Samsung’s authorization. Location Part No. function Description Buzzer Circuit Be generated sound when Key is pressed or the encoder is operated. CN202 Connect Main PBA Receives power from the Main PBA and provides a communications function. CN701 Drum Light Circuit It controls drum light LED On/Off CN402 Connect Touch Sensor Supplys power to touch sensor and provides a communications function. 40 _ PCB Diagram...

  • Page 43: Detailed Descriptions Of Contact Terminals (Sub Pcb)

    5-4. DETAILED DESCRIPTIONS Of CONTACT TERMINALS (SuB PCB) This Document can not be used without Samsung’s authorization. ► CN202 1. Communications Port(Tx) 2. Communications Port(Rx) 3. Reset Signal input ► CN701 4. 5V 1. 12V 5. GND 2. Unused pin 6. 12V 3. Drum light control pin ► CN402 1. 12V 2. GND 3. Touch communication Port (SDA) 4. Touch communication Port (SCL)

  • Page 44: Wiring Diagram

    6. WIRING DIAGRAM 6-1. WIRING DIAGRAM (DV45H6300E*, DV42H5600E*) This Document can not be used without Samsung’s authorization. ■ Reference Information BLACK BLUE GREEN GRAY NATURAL ORANGE PINK SKYBLU SKYBLUE VIOLET WHITE YELLOW 42 _ Wiring Diagram...

  • Page 45: Wiring Diagram (Dv45H6300G*, Dv42H5600G*)

    6-2. WIRING DIAGRAM (DV45H6300G*, DV42H5600G*) This Document can not be used without Samsung’s authorization. ■ Reference Information BLACK BLUE GREEN GRAY NATURAL ORANGE PINK SKYBLU SKYBLUE VIOLET WHITE YELLOW Wiring Diagram _ 43...

  • Page 46: Wiring Diagram (Dv42H5400*, Dv42H5200*, Dv42H5000*)

    6-3. WIRING DIAGRAM (DV42H5400*, DV42H5200*, DV42H5000*) This Document can not be used without Samsung’s authorization. ■ Reference Information BLACK BLUE GREEN GRAY NATURAL ORANGE PINK SKYBLU SKYBLUE VIOLET WHITE YELLOW 44 _ Wiring Diagram...

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